Dwarf Fortress Bug Tracker - Dwarf Fortress
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IDProjectCategoryView StatusDate SubmittedLast Update
0000217Dwarf FortressTechnical -- Generalpublic2010-04-02 19:492010-06-09 06:45
ReporterHoly Mittens 
Assigned ToFootkerchief 
PrioritynormalSeveritycrashReproducibilityalways
StatusclosedResolutionduplicate 
PlatformWindowsOSVistaOS VersionSP2
Product Version 
Target VersionFixed in Version 
Summary0000217: World Gen consumes massive amounts of memory
DescriptionStarting world gen causes Dwarf Fortress's memory usage to jump from roughly 43 MB to 1.5 GB. Generating a world continues to cause the memory usage to rise. Generating a Large world causes my system to reach 100% memory usage very shortly and immediately DF crashes. Generating Medium or smaller worlds successfully finish generating as they never reach 100% memory usage.
Steps To ReproduceStart world gen.
Additional Information
TagsNo tags attached.
Relationships
duplicate of 0000046resolved Footkerchief After "Create New World Now!", there was a memory leak and process left running after quitting. 
has duplicate 0001889closed Logical2u World gen crashing DF after 100-300 years of genning. 
Attached Files
Issue History
Date ModifiedUsernameFieldChange
2010-04-02 19:49Holy MittensNew Issue
2010-04-02 19:53DoctorZuberNote Added: 0000378
2010-04-03 02:14bradbNote Added: 0000459
2010-04-03 11:18FootkerchiefRelationship addedchild of 0000046
2010-04-03 19:21Someone_r_c_tmNote Added: 0000747
2010-04-03 20:37Someone_r_c_tmIssue Monitored: Someone_r_c_tm
2010-04-03 21:01Holy MittensNote Added: 0000775
2010-04-04 17:08Holy MittensNote Added: 0000959
2010-04-14 13:04lord_chaos22000Issue Monitored: lord_chaos22000
2010-04-29 13:49FootkerchiefCategoryGeneral => Technical
2010-04-29 13:49FootkerchiefNote Added: 0005701
2010-05-27 13:57FootkerchiefNote Added: 0007397
2010-05-27 13:57FootkerchiefTag Attached: AWAITING UPDATE
2010-05-27 13:59FootkerchiefTag Detached: AWAITING UPDATE
2010-05-27 13:59FootkerchiefNote Deleted: 0007397
2010-05-27 13:59FootkerchiefNote Added: 0007398
2010-05-27 13:59FootkerchiefRelationship replacedduplicate of 0000046
2010-05-27 13:59FootkerchiefStatusnew => resolved
2010-05-27 13:59FootkerchiefResolutionopen => duplicate
2010-05-27 13:59FootkerchiefAssigned To => Footkerchief
2010-05-27 18:44Logical2uRelationship addedhas duplicate 0001889
2010-05-27 18:47Logical2uNote Added: 0007406
2010-05-27 19:14FootkerchiefNote Added: 0007407
2010-05-27 19:22Logical2uNote Added: 0007408
2010-06-09 06:45Toady OneStatusresolved => closed
2010-06-29 07:38FootkerchiefCategoryTechnical => Technical -- General

Notes
(0000378)
DoctorZuber   
2010-04-02 19:53   
0000216
(0000459)
bradb   
2010-04-03 02:14   
Similar to 0000216 but this report states that the game crashes immediately. It might be that other reporter is not reaching 100% usage.
(0000747)
Someone_r_c_tm   
2010-04-03 19:21   
This issue seems to be related to having graphics on for me. If I set [GRAPHICS:YES] in init.txt generating a world causes memory usage to rise to around 1.5GB. If graphics is set to NO memory usage only rises to about 110MB or so for me.
(0000775)
Holy Mittens   
2010-04-03 21:01   
This seems to have magically disappeared for me. Even though I am still using graphics, I generated a world today and it didn't have a sudden jump in memory usage prior to world gen actually starting (at which point it began to rise, but not excessively).
(0000959)
Holy Mittens   
2010-04-04 17:08   
Nope, it's back now. Turning off graphics does correct the problem though.
(0005701)
Footkerchief   
2010-04-29 13:49   
Is this problem still around in 31.03?
(0007398)
Footkerchief   
2010-05-27 13:59   
This seems to be the same problem as 0000046. Please continue any discussions there.
(0007406)
Logical2u   
2010-05-27 18:47   
If I may, I think this "bug" is more about there's too much memory usage in general in World Gen, leading to a possible crash. But 0000046 is specifically a memory leak after multiple world generations.

If anything, in my eyes 0000046 is the child of this bug.
(0007407)
Footkerchief   
2010-05-27 19:14   
I didn't see anything about multiple world generations in 0000046, and people in 0000046 were talking about high memory usage (even mentioning the same 1.5 GB figure) as part of the issue. 0000046 doesn't mention a crash, but there's no corroboration of a crash in this report, either.

Basically, these reports seem mostly identical but the discussion in 0000046 seems more productive (more memory usage stats etc).
(0007408)
Logical2u   
2010-05-27 19:22   
Well 0000046 is about the memory leak - they generated a world then quit the game and the process persisted, hogging the same amount of memory. (or too much). [I quote, "The process is taking 1.4gb of ram even after running another instance of DF. Required a "end process" to recover."]

This is just about they generated a world that used too much memory (and there were a few reports about hitting the 2gb limit and crashing, but you're right, neither of them are mentioned here, which I expected).

But yes, 0000046's discussion is better, I'm just seeing it as a child of "high memory usage" because 0000046 reads as "high memory usage persists after qutting" where as this is just "high memory usage". I'm not sure the distinction is super important, but it's just how I see it anyways.